Oil burner



Sept. l, 1931. L. J.F|s|-|ER 1,821,752

OIL BURNER Original Filed June 5, 1929 ,l i. 7&4/

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Patented sept. 1i, 1931 UNITED STATES LEWIS J. FISHER, OF REEDSIBURG,v WISCONSIN 011:. BURNER Application filed June 5, 1929, Serial No.1368,60. Renewed January 29, y1931.

The present invention is directed to improvements in oil burners.

The primary object of the invention is to provide a device of this character capable of being used in stoves, furnaces, and the like, the const-ruction being such that hydrocarbon fuel will be quickly vaporized for effectively operating the burner. f t

yAnother object of the invention is to provide a burner of this kind which consists of a minimum number of parts, is durable, and one which can be manufactured at a very small cost.

Another' object of the invention is to provide an oil burner which is so constructed that should the flame become accidentally eX- tinguished, the flow of oil to the burner will bel automatically cut off.

With these and other objects in View, this invention resides in the novel features of construction, formation, combination and arrangement of parts to be hereinafter more fully described, claimed and illustrated in theaccompanying drawings, in which:

Figure 1 is a vertical sectional view through Figure 2 is a top plan view. Y Referring to the drawings, 1 designates the burner which consists of an inner cylinder 2 and an outercylinder 3 annularly spaced to providev an oil receiving chamber 4, said chamber being closed .at its upper and lower ends by ring closures 5 and 6 respectively,

which also serve to maintain spaced'relation. .A Y

The inner cylinder providesa combustion chamber 7 inthe lower end of which is engaged thel circular pan 8 having an air inlet tube 9 depending fromy the bottom thereof, the upper end of the inlet or tube being eX- tended into the pan to provide anannular trough 10. The tube 9 is supported by a bracket 11.

Leading from the upper end of the chamber 4 are pipes 12, said pipes being disposed vertically and eXteriorly of the burner and the cylinders in having their lower ends connected with a pipe assembly 13 having a. union 14 to which is connected the lower end of the pipe assembly 15, said pipe assembly having its upper end extended into the pan'. 16 is carried by the extended end of the pipe assembly 15,'said nozzle being disposed tanf gentially in orderthat the vaporized fuel will be subjected to a whirling actionwithin the combustion chamber.

The pipe assemblyV includes a union 17 in which is mounted an injector nozzle 18, there beinga sleeve 19 connected with the union to admit air tothe uniony to promote combustion. Y

An oil supply pipe assembly 2O is connected with the lower endof the burner for conducting oil into the lower end of the chamber v4, said assembly leading from a suitablefsourcev of supply such as a tank.

This pipe assembly yhas carried thereby a feed 'regulating valve 21 and a check valve 21a to prevent back iiow of oil from thecham ber 4.

Disposed under the pan 8 and tube 9 is apan 22 supported on an arm 23 pivoted to a suitable support as at 24, said arm being connected to the arm 25 of the trip valve 26 in the pipe! assembly 20 by a link 27. Obvious. ly, should the iame become accidentally extinguished, oil over-flowing from the pan 8l will drip into thepan 22, thereby actuatingY the arm in orderfthatvthe valve 26- will lbe closed to prevent flow of oil to the chamber.l

A discharge nozzle The burner may be supported in any suiti able manner and is so constructed that it can be conveniently applied to heating apparatus of various types. Y

To place the burner in operation, a torch saturated with oil may be used to provide a temporary flame to heat the burner for vaporizing the fuel. The vaporized fuel will then iiow through the pipes 12, pipe assemblies 13 and 15, and will be discharged from the nozt zle 16, the discharged vapor being ignited 4 from the flame of the torch so that the burner will operateuntil a supply of fuel is exhausted or cut od.

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From the foregoing, it is thought that the operation, and many advantages of the herein described invention will be apparent to those skilled in the art without further description, and it will be understood that various changes in the size, shape, proportion and minor details of construction may be resorted to Without departing from the spirit-or sacriicing any of the advantages of the invention.

What is claimed is:

1. An oil burner comprisingV a combustion chamber and an annular liquid fuel receiving chamber, a pan mounted in the lower end lof the combustion chamber and .annularly spaced from the walls thereof, an air admittingtube extended into the pan, a gaseous fuel discharge nozzle mounted in the pan and disposed ltangentially with respect to the cornbustion chamber, and means for conducting` gaseousfuel from the fuel chamber to the nozzle.

2. An oil burner comprising a combustion chamber and a surrounding oil receiving chamber, an oil supply pipe assembly connected to the oil chamber, a pan located in the combustion chamber, nieans for conducting gaseous fuel from the oil chamber to the combustion chamber, a drip pan pivotally supported below the combustion chamber, and means operable by the tripping` of the second pan for cutting off the flow of fuel through the ipe assembly by overflow of fluid from the Erst pan.

3. An` oil burner comprising a combustion chamber, a surroundingoil chamber, a 1ne1nber Within the lower end of the combustion chamber, andspaced from the walls thereof to define an annular air passage and having a centrally disposed air inlet, a pipe assembly for conducting gaseous fuel from the oil chainber to the combustion chamber7 an oil supply pipe connected to kthe oil chamber andincluding a valve, and a drip pan pivotally mounted belowgthe Combustion chamber and con nected with the said valve to cut off the sup ply of oil when the drip pan is actuated by an excess of overflow.V n y f In testimony ,whereof I afliX my signature.

LEWIS J, FISHER. pi s] 

